mirror of https://gitee.com/openkylin/linux.git
Merge branch 'for-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup updates from Tejun Heo: "These three patches were scheduled for the merge window but I forgot to send them out. Sorry about that. None of them are significant and they fit well in a fix pull request too - two are cosmetic and one fixes a memory leak in the mount option parsing path" * 'for-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: cgroup: Fix memory leak when parsing multiple source parameters cgroup/cgroup.c: replace 'of->kn->priv' with of_cft() kernel: cgroup: Mundane spelling fixes throughout the file
This commit is contained in:
Linus Torvalds
commit
91afe604c1
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@ -908,6 +908,8 @@ int cgroup1_parse_param(struct fs_context *fc, struct fs_parameter *param)
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opt = fs_parse(fc, cgroup1_fs_parameters, param, &result);
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if (opt == -ENOPARAM) {
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if (strcmp(param->key, "source") == 0) {
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if (fc->source)
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return invalf(fc, "Multiple sources not supported");
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fc->source = param->string;
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param->string = NULL;
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return 0;
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@ -244,7 +244,7 @@ bool cgroup_ssid_enabled(int ssid)
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*
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* The default hierarchy is the v2 interface of cgroup and this function
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* can be used to test whether a cgroup is on the default hierarchy for
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* cases where a subsystem should behave differnetly depending on the
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* cases where a subsystem should behave differently depending on the
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* interface version.
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*
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* List of changed behaviors:
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@ -262,7 +262,7 @@ bool cgroup_ssid_enabled(int ssid)
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* "cgroup.procs" instead.
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*
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* - "cgroup.procs" is not sorted. pids will be unique unless they got
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* recycled inbetween reads.
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* recycled in-between reads.
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*
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* - "release_agent" and "notify_on_release" are removed. Replacement
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* notification mechanism will be implemented.
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@ -342,7 +342,7 @@ static bool cgroup_is_mixable(struct cgroup *cgrp)
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return !cgroup_parent(cgrp);
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}
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/* can @cgrp become a thread root? should always be true for a thread root */
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/* can @cgrp become a thread root? Should always be true for a thread root */
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static bool cgroup_can_be_thread_root(struct cgroup *cgrp)
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{
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/* mixables don't care */
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@ -527,7 +527,7 @@ static struct cgroup_subsys_state *cgroup_e_css_by_mask(struct cgroup *cgrp,
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* the root css is returned, so this function always returns a valid css.
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*
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* The returned css is not guaranteed to be online, and therefore it is the
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* callers responsiblity to tryget a reference for it.
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* callers responsibility to try get a reference for it.
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*/
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struct cgroup_subsys_state *cgroup_e_css(struct cgroup *cgrp,
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struct cgroup_subsys *ss)
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@ -699,7 +699,7 @@ EXPORT_SYMBOL_GPL(of_css);
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; \
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else
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/* walk live descendants in preorder */
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/* walk live descendants in pre order */
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#define cgroup_for_each_live_descendant_pre(dsct, d_css, cgrp) \
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css_for_each_descendant_pre((d_css), cgroup_css((cgrp), NULL)) \
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if (({ lockdep_assert_held(&cgroup_mutex); \
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@ -933,7 +933,7 @@ void put_css_set_locked(struct css_set *cset)
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WARN_ON_ONCE(!list_empty(&cset->threaded_csets));
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/* This css_set is dead. unlink it and release cgroup and css refs */
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/* This css_set is dead. Unlink it and release cgroup and css refs */
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for_each_subsys(ss, ssid) {
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list_del(&cset->e_cset_node[ssid]);
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css_put(cset->subsys[ssid]);
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@ -1058,7 +1058,7 @@ static struct css_set *find_existing_css_set(struct css_set *old_cset,
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/*
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* Build the set of subsystem state objects that we want to see in the
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* new css_set. while subsystems can change globally, the entries here
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* new css_set. While subsystems can change globally, the entries here
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* won't change, so no need for locking.
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*/
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for_each_subsys(ss, i) {
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@ -1148,7 +1148,7 @@ static void link_css_set(struct list_head *tmp_links, struct css_set *cset,
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/*
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* Always add links to the tail of the lists so that the lists are
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* in choronological order.
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* in chronological order.
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*/
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list_move_tail(&link->cset_link, &cgrp->cset_links);
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list_add_tail(&link->cgrp_link, &cset->cgrp_links);
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@ -3654,7 +3654,7 @@ static ssize_t cgroup_freeze_write(struct kernfs_open_file *of,
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static int cgroup_file_open(struct kernfs_open_file *of)
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{
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struct cftype *cft = of->kn->priv;
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struct cftype *cft = of_cft(of);
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if (cft->open)
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return cft->open(of);
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@ -3663,7 +3663,7 @@ static int cgroup_file_open(struct kernfs_open_file *of)
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static void cgroup_file_release(struct kernfs_open_file *of)
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{
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struct cftype *cft = of->kn->priv;
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struct cftype *cft = of_cft(of);
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if (cft->release)
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cft->release(of);
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@ -3674,7 +3674,7 @@ static ssize_t cgroup_file_write(struct kernfs_open_file *of, char *buf,
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{
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struct cgroup_namespace *ns = current->nsproxy->cgroup_ns;
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struct cgroup *cgrp = of->kn->parent->priv;
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struct cftype *cft = of->kn->priv;
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struct cftype *cft = of_cft(of);
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struct cgroup_subsys_state *css;
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int ret;
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@ -3724,7 +3724,7 @@ static ssize_t cgroup_file_write(struct kernfs_open_file *of, char *buf,
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static __poll_t cgroup_file_poll(struct kernfs_open_file *of, poll_table *pt)
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{
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struct cftype *cft = of->kn->priv;
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struct cftype *cft = of_cft(of);
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if (cft->poll)
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return cft->poll(of, pt);
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@ -4134,7 +4134,7 @@ struct cgroup_subsys_state *css_next_child(struct cgroup_subsys_state *pos,
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* implies that if we observe !CSS_RELEASED on @pos in this RCU
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* critical section, the one pointed to by its next pointer is
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* guaranteed to not have finished its RCU grace period even if we
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* have dropped rcu_read_lock() inbetween iterations.
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* have dropped rcu_read_lock() in-between iterations.
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*
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* If @pos has CSS_RELEASED set, its next pointer can't be
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* dereferenced; however, as each css is given a monotonically
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@ -4382,7 +4382,7 @@ static struct css_set *css_task_iter_next_css_set(struct css_task_iter *it)
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}
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/**
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* css_task_iter_advance_css_set - advance a task itererator to the next css_set
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* css_task_iter_advance_css_set - advance a task iterator to the next css_set
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* @it: the iterator to advance
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*
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* Advance @it to the next css_set to walk.
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@ -6308,7 +6308,7 @@ struct cgroup_subsys_state *css_from_id(int id, struct cgroup_subsys *ss)
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*
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* Find the cgroup at @path on the default hierarchy, increment its
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* reference count and return it. Returns pointer to the found cgroup on
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* success, ERR_PTR(-ENOENT) if @path doens't exist and ERR_PTR(-ENOTDIR)
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* success, ERR_PTR(-ENOENT) if @path doesn't exist and ERR_PTR(-ENOTDIR)
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* if @path points to a non-directory.
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*/
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struct cgroup *cgroup_get_from_path(const char *path)
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